You cannot change the default language for content in the mobile app like in web version.
Steps:
- The OS language is set to English
- Open News
- Open Settings
- Open Content Language
Actual result: 'English' checkbox is disabled and marked as Main Language
I want to be able to choose any language regardless of what language is set in the operating system. Personally, I set all my devices to English, but I'm more comfortable reading news in Russian.